Radius = 7 cm
Height of cylindrical portion = 13 - 7 = 6 cm
Curved surface area of cylindrical portion can be calculated as follows:
2πrh = 2 × 22/7 × 7 × 6 = 264 cm²
Curved surface area of hemispherical portion can be calculated as follows:
2πr² = 2 × 22/7 × (7)² = 308 cm²
Then, total surface area of the vessel = 308 + 264 = 572 sq cm